18 X ½” PAN HEAD SCREW, PHILLIPS MODIFIED TRUSS HEAD, SELF-DRILLING SCREWS, CR3+ ZINC PLATED
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18 X ��?�� PAN HEAD SCREW, PHILLIPS MODIFIED TRUSS HEAD, SELF-DRILLING SCREWS, CR3+ ZINC PLATED
Engineered for efficiency and reliability, these self-drilling screws (also known as Tek screws) create their own threads and eliminate the need for pre-drilling in metal-to-metal applications. The modified truss head provides a large bearing surface for secure clamping, while the CR3+ Zinc Plating offers robust corrosion protection, making them ideal for construction and industrial MRO projects in the Los Angeles area.
- Self-Drilling Fastener (Tek Screw)
- SAE J78 Compliant
- CR3+ Zinc Plated per ASTM B633
- Metal-to-Metal Connections
These industrial-grade self-drilling screws are manufactured from high-quality carbon steel to meet the rigorous performance criteria of SAE J78 standards. The defining feature is the hardened drill point that can penetrate light to medium gauge steel without a pilot hole, significantly reducing installation time and labor costs. The screw's threads are designed for optimal engagement and pull-out resistance in sheet metal. The entire fastener is coated with a CR3+ Zinc plating according to ASTM B633, providing a durable, corrosion-resistant finish suitable for various indoor and outdoor environments.
The Phillips modified truss head combines a low-profile design with a wide bearing surface, preventing pull-through and ensuring a secure connection. This versatile design makes them a top choice for fabricators, contractors, and MRO professionals. Commonly used for attaching metal lath, ductwork, electrical components, and framing, these screws provide a strong, reliable fastening solution for a wide range of commercial and industrial projects. Available for same-day pickup from our Los Angeles warehouse, they are a staple for any job requiring fast and effective metal fastening.
Specifications
- Material: Carbon Steel
- Standards: SAE J78 (for performance), ASTM B633 (for plating)
- Strength/Tensile: Engineered for high shear and pull-out strength in sheet metal applications
- Dimensions: #18 Diameter X 3/4" Length (Interpreted from product name)
- Finish: CR3+ Trivalent Chromate Zinc Plated
- Certifications: Conforms to SAE J78 dimensional and performance standards.
Applications
- HVAC & Mechanical: Securing ductwork, straps, plenums, and mechanical equipment.
- Steel Framing: Fastening light-gauge steel studs, tracks, and framing components.
- Electrical: Mounting junction boxes, conduit clips, and fixtures to metal studs or enclosures.
- General Fabrication & MRO: Assembling metal enclosures, machinery guards, and performing repairs on equipment.
Target Users
These screws are essential for sheet metal workers, HVAC installers, electricians, maintenance technicians, and steel framers. They are ideal for any professional requiring a fast, reliable, and corrosion-resistant fastener for metal-to-metal connections in MRO and new construction.
Finish Options
This product comes standard with a high-performance CR3+ Zinc plating, which provides excellent corrosion resistance and a bright, clean appearance. This finish meets ASTM B633 specifications and is suitable for most commercial and industrial applications. For projects requiring enhanced corrosion protection, other coatings may be available via special order.
How to Measure
To ensure you order the correct self-drilling screw, specify the following: Diameter (Gauge Size), Length (measured from under the head to the tip of the drill point), Head Type (e.g., Modified Truss), and Drive Type (e.g., Phillips).
Example: #18 x 3/4" Phillips Modified Truss Head Self-Drilling Screw, Zinc Plated
Order Checklist
- Product name and required dimensions (Diameter and Length)
- Head and drive type (Phillips Modified Truss)
- Quantity required (e.g., by the box or case)
- Surface finish requirements (CR3+ Zinc Plated)
- Certifications required (if any)
- Confirm same-day pickup or delivery requirements
Quick Facts
- Product
- 18 X ��?�� PAN HEAD SCREW, PHILLIPS MODIFIED TRUSS HEAD, SELF-DRILLING SCREWS, CR3+ ZINC PLATED
- Material
- Carbon Steel
- Standards
- SAE J78, ASTM B633
- Key Properties
- Self-drilling point for fast installation; CR3+ Zinc plating for corrosion resistance.
- Primary Applications
- HVAC, Steel Framing, Electrical, MRO
- Location
- Los Angeles warehouse - Same-day pickup available
Available Sizes
We stock a comprehensive range of self-drilling Tek screws in various diameters (from #6 to #14 and larger) and lengths (from 1/2" to 4"). This specific #18 X 3/4" screw is a regularly stocked item available in bulk quantities.
Custom sizes and finishes may be available upon request.
Contact for Sizing